ke-scan is a command-line tool that uses the IKE protocol to discover, fingerprint and test IPsec VPN servers. It is available for Linux, Unix, MacOS and Windows under the GPL license.

These new features will be present in the next version of ike-scan.

This list comes from the NEWS file, which is part of the ike-scan distribution.

•  The function that converts strings to numbers is now stricter, and no longer permits any invalid characters. This improves error reporting in some invalid cases that previously gave no error, e.g. using “1=7/256″ in an advanced transform specification.
• New backoff patterns for Cisco PIX 7.0
• New vendor ids for Windows 2008 server
• ike-scan now uses the OpenBSD strlcat and strlcpy functions instead of the standard strcat, strncat, strcpy and strncpy functions. This reduces the chance of buffer overflow bugs.

Read more: Here

Download: Here